PuTTY bug vt100-line-drawing-oprs

summary: VT100 vertically offset horizontal line characters mis-displayed on Windowsclass: bug: This is clearly an actual problem we want fixed.difficulty: fun: Just needs tuits, and not many of them.priority: high: This should be fixed in the next release.present-in: 0.61fixed-in: r9221 0.62

The VT100 line drawing character set contains four characters (encoded
as o,p,r,s) which are vertically offset versions of the normal box-drawing
horizontal line character (q). On Windows, PuTTY displays these by
displaying the ordinary horizontal line with a vertical offset, since
some fonts do not include the offset versions.

A bug in PuTTY's Windows text display code was causing other VT100
characters immediately to the right of one of those to be displayed
using the same horizontal offset.